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gyacomo/src/tesend.F90
86d82f990c06shear_version

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tesend.F90
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SUBROUTINE tesend
! Test for run completion
USE basic
use prec_const
IMPLICIT NONE
LOGICAL :: mlend, mlexist
REAL :: tnow
INTEGER :: ncheck_stop = 100
CHARACTER(len=*), PARAMETER :: stop_file = 'mystop'
!________________________________________________________________________________
! 1. Some processors had set nlend
CALL mpi_allreduce(nlend, mlend, 1, MPI_LOGICAL, MPI_LOR, MPI_COMM_WORLD, ierr)
IF( mlend ) THEN
nlend = .TRUE.
crashed = .TRUE.
IF (my_id .EQ. 0) WRITE(*,'(/a)') 'rhs are NaN/Inf'
IF (my_id .EQ. 0) WRITE(*,*) 'Run terminated at cstep=',cstep
RETURN
END IF
!________________________________________________________________________________
! 2. Test on NRUN
nlend = step .GT. nrun
IF ( nlend ) THEN
WRITE(*,'(/a)') 'NRUN steps done'
RETURN
END IF
!________________________________________________________________________________
! 3. Test on TMAX
nlend = time .GT. tmax
IF ( nlend ) THEN
IF (my_id .EQ. 0) WRITE(*,'(/a)') 'TMAX reached'
RETURN
END IF
!
!
!________________________________________________________________________________
! 4. Test on run time
CALL cpu_time(tnow)
mlend = (1.2*(tnow-start)) .GT. maxruntime
CALL mpi_allreduce(mlend, nlend, 1, MPI_LOGICAL, MPI_LOR, MPI_COMM_WORLD, ierr)
IF ( nlend ) THEN
IF(my_id.EQ.0) WRITE(*,'(/a)') 'Max run time reached'
RETURN
END IF
!________________________________________________________________________________
! 5. NRUN modified through "stop file"
!
IF( (my_id .EQ. 0) .AND. (MOD(cstep, ncheck_stop) == 0) ) THEN
INQUIRE(file=stop_file, exist=mlexist)
IF( mlexist ) THEN
OPEN(lu_stop, file=stop_file)
mlend = mlexist ! Send stop status asa the file exists
WRITE(*,'(/a,i4,a)') 'Stop file found -> finishing..'
CLOSE(lu_stop, status='delete')
END IF
END IF
CALL mpi_allreduce(mlend, nlend, 1, MPI_LOGICAL, MPI_LOR, MPI_COMM_WORLD, ierr)
!
RETURN
!
END SUBROUTINE tesend
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